/*
 * Copyright 2009-2013 by The Regents of the University of California
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * you may obtain a copy of the License from
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers;

import java.util.Arrays;

public class IntArray {
    private static final int SIZE = 128;

    private int[] data;
    private int length;

    public IntArray() {
        data = new int[SIZE];
        length = 0;
    }

    public void add(int d) {
        if (length == data.length) {
            data = Arrays.copyOf(data, data.length << 1);
        }
        data[length++] = d;
    }

    public int[] get() {
        return data;
    }

    public int get(int i) {
        return data[i];
    }

    public int length() {
        return length;
    }

    public void reset() {
        length = 0;
    }

    public void sort() {
        sort(0, length);
    }

    public void sort(int start, int end) {
        Arrays.sort(data, start, end);
    }

    @Override
    public String toString() {
        StringBuilder out = new StringBuilder();
        out.append('[');
        for (int i = 0; i < length; ++i) {
            out.append(data[i]);
            if (i < length - 1) {
                out.append(',');
                out.append(' ');
            }
        }
        out.append(']');
        return out.toString();
    }
}
